The invention discloses a complex exponential
signal joint spectrum reconstruction and parameter
estimation method and device, and relates to the field of
signal processing, and the method comprises the steps: S1, constructing
noise-containing complex exponential
signal training data and
label data; s2, constructing a dual-module neural
network model comprising a super-resolution denoising reconstruction module and a parameter prediction module; s3, training the dual-module neural
network model by using the training data and the
annotation data to obtain a trained dual-module neural
network model; and S4, performing
frequency spectrum reconstruction and parameter prediction by using the trained dual-module neural network model, and performing signal post-
processing on the output to obtain
estimation parameters of the
angular frequency, the
attenuation factor, the real part amplitude and the imaginary part amplitude. According to the invention, a
cascade neural network architecture of a super-resolution denoising reconstruction module and a parameter prediction module is designed, and
angular frequency detection is converted into a
Gaussian distribution
heat map regression task; meanwhile, a sparse activation labeling mechanism is adopted, the parameter
truth value is only reserved at the spectrum peak position, and the
model learning complexity is remarkably reduced.